Quarter	Percent
1998-01-01	46.2162572035184
1999-01-01	46.4279853054423
1999-04-01	46.5105421876774
1999-07-01	46.8954042403005
1999-10-01	46.4192150738072
2000-01-01	46.3800961950089
2000-04-01	46.7196093484526
2000-07-01	47.0188422761772
2000-10-01	46.8360963206324
2001-01-01	46.4425263528200
2001-04-01	47.0252147270079
2001-07-01	47.1482746496559
2001-10-01	47.0542450757623
2002-01-01	46.5646336201426
2002-04-01	47.0913214815190
2002-07-01	47.3445497390159
2002-10-01	47.1383580182892
2003-01-01	46.9012585310876
2003-04-01	47.5430958993220
2003-07-01	47.8749609252892
2003-10-01	47.4032942350886
2004-01-01	45.5370273436526
2004-04-01	46.5737398879900
2004-07-01	47.3079407672431
2004-10-01	46.7243173596313
2005-01-01	46.4181114914546
2005-04-01	46.9606233099139
2005-07-01	47.9942304847379
2005-10-01	47.2842193283408
2006-01-01	46.8697829716194
2006-04-01	48.0542264752791
2006-07-01	49.3689826454897
2006-10-01	48.3834637090357
2007-01-01	48.2861091069179
2007-04-01	49.2727605788606
2007-07-01	49.9749826098630
2007-10-01	49.1697147037308
2008-01-01	48.9225109332554
2008-04-01	49.9586525598930
2008-07-01	50.3252951977916
2008-10-01	49.8182127700969
2009-01-01	48.8704993134288
2009-04-01	49.5464646096681
2009-07-01	49.9915048543689
2009-10-01	49.5678316422398
2010-01-01	48.7660306916531
2010-04-01	49.4385017020606
2010-07-01	50.2082173207757
2010-10-01	49.9703838017528
2011-01-01	49.2173429548779
2011-04-01	49.9589827727646
2011-07-01	50.6621957397535
2011-10-01	50.0914714873745
2012-01-01	49.5548818632405
2012-04-01	50.3562545808452
2012-07-01	50.9175578199450
2012-10-01	50.0892268998144
2013-01-01	49.1569840491091
2013-04-01	50.0419775000600
2013-07-01	50.6628186858587
2013-10-01	50.0495800628412
2014-01-01	49.4007830404889
2014-04-01	50.2912274432732
2014-07-01	50.6920003804813